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–+ servings

Blueberry Lime Jam without Pectin

This mouthwatering homemade jam will become a new family favorite. You can use lemon or lime depending on your preferences. Make extra and use it as gifts for friends and family!
5 from 1 vote
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Prep Time 15 minutes
Cook Time 30 minutes
Canning Time 10 minutes
Total Time 55 minutes
Servings 16 half-pint jars

Ingredients
  

  • 5 quarts blueberries, fresh or frozen
  • 4 cups cane sugar
  • 5 limes, zested and juiced 1/2 cup total fresh lime juice
  • 1/4 cup jarred lime juice
  • 1/2 tsp citric acid

Instructions
 

  • Fill your hot water bath canner with enough water so that when cans are placed in, they will have 1" of water above their lids. Bring water to a boil and maintain the hot water at a temperature of 180º.
  • Set a few spoons in the freezer for testing the setting of the jam later on.
  • Start by mashing the blueberries in a non-reactive stock pot using a potato masher or an immersion blender.
  • Add the sugar, lime zest, citric acid, and 3/4 cup total of juice from limes and jarred lime juice.
  • Cook on medium-high heat until it starts boiling, stirring occasionally.
  • Once it boils, reduce the heat to medium-low and let it simmer for 30 minutes or until it has reached the desired thickness.
  • Test jam for proper setting. Take a frozen spoon and drop fresh hot jam onto it. If the jam doesn't immediately drip off the spoon it is finished! If, however, it rolls off the spoon immediately, you can bring the jam to a rolling boil for one more minute and cook the jam for another 10 minutes at medium-low heat.
  • Turn off the heat and begin transferring the jam into clean jars. Using the funnel and a ladle fill jars leaving 1/2" of headspace. To ensure a good seal, put the lids and rings on firmly but do not tighten with too much force.
  • Put filled jars into the hot water bath and bring to a boil. Then maintain the water at a temperature of 180º for 10 minutes. Turn off heat.
  • Carefully remove jam jars from canner using tongs, keeping the jars upright, and setting them on a towl on the counter to rest for 24 hours. DO NOT disturb the jars or turn the rings for 24-48 hours.
  • Store in a cool dry place until ready to serve! Enjoy!

Notes

Important note: Uncanned/Unsealed Blueberry Jam without pectin has a short shelf life of only 2 weeks in the refrigerator. Be sure to enjoy it as soon as possible!
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